login
A298634
Number of nX7 0..1 arrays with every element equal to 0, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.
1
1, 94, 21, 81, 107, 246, 462, 991, 1953, 4272, 9838, 22598, 52716, 122648, 291782, 694686, 1655782, 3946960, 9422118, 22546272, 53963889, 129254366, 309752937, 742752613, 1781632012, 4274164398, 10255665681, 24611457341, 59070424950
OFFSET
1,2
COMMENTS
Column 7 of A298635.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..1..1..0..0. .0..0..0..0..0..1..1. .0..0..0..0..0..0..1
..0..1..0..1..0..1..0. .0..1..1..1..1..0..1. .0..1..1..1..0..1..1
..1..1..0..0..0..1..0. .1..0..0..1..0..0..1. .1..0..1..0..0..0..1
..0..1..0..1..0..1..0. .1..0..1..1..1..0..1. .0..1..1..1..1..1..0
..0..0..1..1..1..0..0. .1..1..0..0..0..1..1. .0..0..0..0..0..0..0
CROSSREFS
Cf. A298635.
Sequence in context: A299827 A146551 A297985 * A033414 A218053 A118684
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 23 2018
STATUS
approved